Switch on UAC on EG25G

I am trying to enable UAC on Quectel EG25G. I followed Quectel_LTE_Standard_UAC_Application_Note_V1.0.pdf but I got error.

> Quectel
> EG25
> Revision: EG25GGBR07A07M2G
> at+qcfg="usbcfg",0x2C7C,0x0125,1,1,1,1,1,0,1
> OK
> at+qcfg="usbcfg"
> +QCFG: "usbcfg",0x2C7C,0x125,1,1,1,1,1,0,1
> OK
> +QPCMV: (0,1),(0,1)
> OK
> AT+QPCMV=1,2
> +QPCMV: 1,0
> OK

How do I switch on UAC? Thank You

After reading through changelog of EG25GGBR07A08M2G firmware version I realised that this was a known bug (that was already fixed) and after doing DFOTA update to the new version EG25GGBR07A08M2G I was able to enable UAC mode and also use it.


Thanks for your feedback, Quectel will continue to support you


I just bought a “Quectel EG25-G Mini PCIe” and have exactly the same problem trying to use “USB Audio Class (UAC)”.

Please could you help me and

  • send me or tell me where to get the newest firmware and
  • tell me how to update the firmware on a Linux system (is QFlash available for Linux; I guess a firmware file for updating via DFOTA is the best way)?

Is “EG25GGBR07A08M2G_30.006.30.006” the newest? There were problems with “EG25GGBR07A08M2G_30.007.30.007”.

Many thanks!

PS: My currently installed firmware version is:


Revision: EG25GGBR07A07M2G


Apr 15 2019 09:56:22
Authors: QCT

I will send you the latest firmware by email. Please check it. Thank you.

Thank you!

I could successfully update the firmware on my “Linux MX 21” with your QFirehose.

@others: You may need these manuals (but it is an easy task):

  • Quectel_LTE&5G_QFirehose_Linux&Android_User_Guide_V1.0.pdf
  • Quectel_LTE_Standard_UAC_Application_Note_V1.0.pdf

@FelixCheng-Q is it possible to get latest firmware as well? Currently we are using EG25GGBR07A08M2G_30.006.30.006, that you’ve sent before.

@FelixCheng-Q thanks, I’ve got EG25GGBR07A08M2G_30.200.30.200 from @lyman-Q. Thank you @lyman-Q

@FelixCheng-Q @lyman-Q We have issues with UAC. Can you provide me latest EG25-G firmware?

OK,but i did’t find your e-mail.

@lyman-Q Ok, my mail is:

I didn’t receive firmware. If you have issues with that mail, here is another one:
Thanks in advance,

send again,please check.

@FelixCheng-Q @lyman-Q Can you send me the latest firmware for EG25-G too please? I’m actively testing UAC.

May i ask what’s firmware are you using?

@lyman-Q Now I’m running EG25GGBR07A08M2G

Send the lastest firmware to you,please check.

@lyman-Q Not yet received. I’ll wait a little bit.

Have you received the firmware package?

@lyman-Q Regretfully, no, I have not received it.